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The variable is a. You can solve for it, like this:
8a - 9 = 7a - 6
8a = 7a + 3
8a - 7a = 3
a = 3
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What is x squared minus 2x plus 5 equals 0?
It is a quadratic equation with one unknown variable, x which has no real roots.
Solve each formaul for the indicated variable d equals rt for t?
d = r t t = d / r
What is the expression for x equals 3 and y equals 6?
A mathematical expression in its' most simplistic form, merely assigns a value to a variable. Don't confuse an expression with an equation. An equation requires a solution. An expression cannot be "solved". It only allows you to determine the value of a variable. This is the expression in words "x is equal to 3" (X is the variable which is equal to the constant number 3) This is the expression in numbers "x=3" The expression in words "y is equal to 6" (Y is the variable which is equal to the constant number 6) The expression in numbers is "y=6" I hope you understand now.
How do you find all real solutions to the system of equations 4x 2 plus y 2 equals 100 and 4x 2 minus y 2 equals 62?
Add the two equations together. This will give you a single equation in one variable. Solve this - it should give you two solutions. Then replace the corresponding variable for each of the solutions in any of the original equations.
What is 4x plus 5y equals 15?
4 multiplyed by a number (Variable) plus 5 multiplyed by a number (V) equals 15 4v + 5v = 15 15/5 = v 15/4 = impossibility >_< Sorry :~) v = ImPoSiBiLiTy
How do you factor 7a6-7a2?
7a2(a + 1)(a - 1)(a2 + 1)
What variable equals 32?
In the right circumstances any variable.
What is the variable in the equation 12k equals 20?
k is the variable.
What is the variable in the equation 60 equals what times 15?
"Wat" is the variable.
Why can't you use a equals equals sign for a for statement?
This answer applies to programming languages in general. The equals sign is used for assignment. For example, the code "$variable = 1" assigns the value of 1 to the variable $variable. If you want to test whether values are the same (equality) the double equals sign is used. For example, when you want to verify that $variable has been assigned the value of 1 you would use: $variable == 1
How do mathematicians define a variable?
They define a variable by saying n equals some value.
If the variable equals thirty four then what is the answer to variable times six?
6 x 34?
What variable represents specific heat in the equation Q equals mcT?
The variable c
Which of these is the variable in the number sentence 4x plus 3 equals 8?
The variable is x.
What is the variable in the equation 60 equals what times fifteen?
15x = 60 The variable is x.
What does count equals count plus 1 and total equals total plus 1 in algorithm means?
This is an instruction to increment the value of a variable by 1 (in this case, either the variable count or the variable total).
What does a variable represent in P equals 3?
the variable represents any number that the P could be
